Mazda's 2019 SkyActiv-X engine may have cracked the HCCI engine challenge. It uses a spark plug to address typical HCCI problems but can also run on compression alone. These engines are 20–30% more ...

About 45 percent of European orders for the CX-30 compact crossover are specified with the SkyActiv-X, a four-cylinder engine with spark-controlled compression ignition, a supercharger, the Miller ...

I don’t think anyone can dispute that Mazda is for the people. That it keeps the Miata humble and therefore objectively great is all I need to defend my case, but there’s also the fact that the ...

News that Mazda is hoping for a 30% fuel efficiency gain on an HCCI (Homogeneous Charge Compression Ignition) engine to be introduced on the next generation Mazda3 in late 2018 brings this technology ...

Mazda has officially announced the Skyactiv-Z, an all-new gasoline engine set to debut in the next-generation Mazda CX-5, expected in late 2027. The engine will be paired with a hybrid system, and ...

Making a new engine while the world’s rushing to switch to electric vehicles only? Mazda said, “why not?” There’s a new innovator in town and it wants you to pay attention. Mazda’s SkyActiv-X engines ...

Mazda is building a straight-six turbodiesel and stuffing it under the hood of a crossover. The 3.3-liter turbocharged diesel will make 251 hp and 406 lb-ft in its most powerful form. This ...

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand how ...

A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...